You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Tool CallsArea: what it touches
ImprovementsKind: in v2.1.282,
ImprovementsSection of the release
What
Claude uses tools (built-in actions such as running a shell command) by name. When Claude calls a tool name that does not exist and exactly one available tool matches it apart from capitalization, the error now ends with a hint: tool names are case-sensitive, and it names the tool to call instead. Before, the error had no hint.
Why
If Claude writes a name like "bash" instead of "Bash", it gets a direct correction and can retry with the right name instead of just being told the tool is unknown.
